... quality in matreial 2,High precision in machining aluminium bar household hardwares decorative bar1,Material:mainly in 6000 grade ... 5052,6060,6463,6082…2,The processing methods including: Aluminium profile extruding,Precise cutting,Straight rectification,Bending,Drilling,Tapping, ... ,powder coating,electrophoresis.4,Meet the China national standard GB/T6892-2006 and Erope standard EN12020-1,2(2001) ...